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Table 3 Dietary data for subjects in Study 2 during the day prior to each test day

From: Effect of betaine supplementation on plasma nitrate/nitrite in exercise-trained men

Variable Pre
Placebo
Post
Placebo
Pre
Betaine
Post
Betaine
Kilocalories 1931 ± 183 2147 ± 265 2242 ± 288 2551 ± 325
Protein (g) 115 ± 16 122 ± 16 125 ± 24 138 ± 22
Carbohydrate (g) 249 ± 24 267 ± 41 280 ± 41 320 ± 52
Fat (g) 58 ± 8 69 ± 12 73 ± 12 83 ± 11
Vitamin C (mg) 58 ± 18 76 ± 26 102 ± 34 80 ± 16
Vitamin E (mg) 5 ± 2 4 ± 1 3 ± 1 4 ± 2
  1. Data are mean ± SEM.
  2. No statistically significant condition × pre/post intervention interaction, pre/post intervention, or condition main effects noted for kilocalories (p = 0.69; p = 0.46; p = 0.13), protein (p = 0.94; p = 0.61; p = 0.57), carbohydrate (p = 0.56; p = 0.67; p = 0.17), fat (p = 0.90; p = 0.41; p = 0.14), vitamin C (p = 0.43; p = 0.92; p = 0.33), or vitamin E (p = 0.41; p = 0.86; p = 0.82), respectively.
  3. Study involved a cross-over design with subjects consuming 2.5 grams of betaine or a placebo daily for 14 days; 21 day washout period between each condition.